12call_empty

Source Code

// MyCC code example
// Gabriel Capella
class Test {
    public void main() {
       print(f(49));
    }
    public int f(int i) {
    	return i;
    }
}

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Results

Assembly

.globl main

main:
   pushq  %rbp                # Save old EBP
   movq    %rsp, %rbp         # Save old ESP

   movq    $0, %rax
   movq    %rax, %rdi
   callq   malloc@PLT
   testq   %rax, %rax
   jz      fail_exit
   pushq   %rax

   callq   __LABEL0
   popq   %rax

   movq %rbp, %rsp            # Restore ESP
   popq %rbp                  # Restore EBP
   retq

__LABEL1:
   pushq  %rbp                # Save old EBP
   movq    %rsp, %rbp         # Save old ESP
   addq    $-8, %rsp

   ##MoMo %7 <- %-1
   movq   %rbp, %rbx
   ##MovL %8 <- 24
   movq   $24, %rax
   ##MoOp %9 <- %7,%8
   addq   %rbx, %rax
   ##MToR %10 <- #9
   movq   (%rax), %rax
   ##SRet
   movq  %rax, %rdi
   movq    %rbp, %rsp 
   popq    %rbp
   retq

   movq    %rbp, %rsp            # Restore ESP
   popq    %rbp                  # Restore EBP
   retq

__LABEL0:
   pushq  %rbp                # Save old EBP
   movq    %rsp, %rbp         # Save old ESP
   addq    $-8, %rsp

   ##MoMo %0 <- %-1
   movq   %rbp, %rbx
   ##MovL %1 <- 16
   movq   $16, %rax
   ##MoOp %2 <- %0,%1
   addq   %rbx, %rax
   ##MToR %3 <- #2
   movq   (%rax), %rbx
   ##MovL %4 <- 49
   movq   $49, %rax
   ##MoMo %5 <- %4
   ##PuAl
   pushq  %rax                  ## prepare call
   pushq  %rbx                  ## prepare call
   ##Push %5
   pushq  %rax
   ##Push %3
   pushq  %rbx
   ##Call (#0)
   call   __LABEL1
   ##PopD
   add   $8, %rsp
   ##PopD
   add   $8, %rsp
   ##PoAl
   popq   %rbx
   popq   %rax
   ##GRet
   movq  %rdi, %rax
   ##Prin %6
   pushq  %rax                  ## prepare print call
   pushq  %rbx                  ## prepare print call
   movq   %rax, %rdi            ## print
   callq   putchar@PLT
   popq   %rbx
   popq   %rax

   movq    %rbp, %rsp            # Restore ESP
   popq    %rbp                  # Restore EBP
   retq

fail_exit:
   movl   $1, %eax
   popq   %rbp
   retq

Expected

1

Got

1